Malaysia's leader said on Saturday communications aboard a missing jet were switched off and its course deliberately changed by someone on board before the aircraft disappeared a week ago, but stopped short of saying it had been hijacked.

Ukraine braced on Saturday for a breakaway vote in Crimea as deadly violence flared again in the ex-Soviet country's tinderbox east amid the biggest east-west showdown since the Cold War.

Finally, the TRS chief K Chandrashekhara Rao has broken his silence over possibility of an alliance with the Congress in Telangana. After saying a firm 'no' to merger with the Congress, KCR has now ruled out any alliance with the Congress in both Assembly and Lok Sabha elections to be held on April 30.

The Bharatiya Janata Party's much anticipated list of Lok Sabha candidates is expected shortly which will end the the suspense over who will contest from Varanasi - its prime ministerial candidate Narendra Modi or party veteran Murli Manohar Joshi.

The Delhi High Court has confirmed death penalty to all four convicts of the December 16 Delhi gangrape and murder case. The four were convicted in September 2013 for raping and murdering a 23-year-old paramedical student.

Science And Technology In Harappan Culture

The Harappan people achieved great accuracy in measuring length, mass and time. The people of Indus valley civilization were among the first to develop a system of uniform weights and measures. Their smallest division which is marked on an ivory scale found in Lothal was approximately 1.704mm the smallest division ever recorded on a scale of the Bronze Age.

Harappan followed the decimal division of measurement for all practical purposes including the measurement of mass as revealed by their hexahedron weights. These brick weights were in a perfect ration of 4:2:1 with weights of 0.05,0.1,0.2,0.5,1,2,5,10,20,50,100,200 and 500 units with each unit weighing approx 28 grams and smaller objects were weighed in similar ratios with the units of 0.871.Unique Harappan inventions include an instrumentwhich was used to measure whole sections of the horizon and the tidal dock.They also evolved new techniques in metallurgy and produced copper,bronze,lead and tin.the engineering skills of Harappans was remarkable especially in building docks after a careful study of tides,waves and currents. A touchstone bearing gold streaks was found in Banawali which was probably used for testing the purity of gold.